2 layers85 × 50 mm ProcessingAndStorage, the printed circuit board in 3D

ProcessingAndStorage

Data logger shield based on STM32+ESP32. Has: LCD, keyboard, WIFi, UART and SD card for data storage. Input is as pulse counter and UART communication.

Open in PCBKit

Size: 85 × 50 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 62
Nets: 118
Pads: 292
Tracks, vias: 426, 166
Pours: 1
Routed: Yes
KiCad: KiCad 9.0 (file 20241229)
Created: 15 Oct 2020
Updated: 11 Aug 2026

Overview

ProcessingAndStorage is an open-source printed circuit board by RobertGawron, from the RobertGawron/HardwareDataLogger repository on GitHub, published under the MIT licence. It is a 2-layer board of 85 × 50 mm with 62 parts on 118 nets, routed with 426 tracks and 166 vias.

It is built around the ESP32-WROOM-32E, CH340X and BC846, with the PJGBLC03C_R1_00001 among its other parts. Its parts include 15 capacitors, 15 resistors, 8 diodes, 4 ICs and 4 transistors. It belongs with the radio and wireless and home automation and IoT boards and the ESP32 and STM32 boards of this library.

Main components

README

Hardware/ProcessingAndStorage/README.md

Parts

Qty	Value	Footprint	References
8	TestPoint	TestPoint:TestPoint_Pad_D1.5mm	TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8
7	10k	Resistor_SMD:R_0805_2012Metric	R1, R4, R5, R8, R17, R18, R20
5	330n	Capacitor_SMD:C_0805_2012Metric	C2, C3, C4, C10, C11
4	100n	Capacitor_SMD:C_0805_2012Metric	C5, C6, C18, C20
4	1k	Resistor_SMD:R_0805_2012Metric	R2, R3, R6, R11
4	BC846	Package_TO_SOT_SMD:SOT-23	Q1, Q2, Q3, Q4
4	LED	LED_SMD:LED_0402_1005Metric	D1, D2, D3, D4
4	PJGBLC03C_R1_00001	Diode_SMD:D_SOD-323F	D5, D6, D7, D8
4	SolderJumper_2_Bridged	Jumper:SolderJumper-2_P1.3mm_Bridged_Pad1.0x1.5mm	JP1, JP2, JP3, JP4
3	10u	Capacitor_SMD:C_0805_2012Metric	C7, C8, C9
3	47k	Resistor_SMD:R_0805_2012Metric	R7, R10, R12
2	100u	Capacitor_SMD:CP_Elec_6.3x5.8	C1, C12
2	LD1117S50TR_SOT223	Package_TO_SOT_SMD:SOT-223-3_TabPin2	U1, U3
1	22R	Resistor_SMD:R_0805_2012Metric	R9
1	4u7	Capacitor_SMD:C_0805_2012Metric	C13
1	CH340X	Package_SO:MSOP-10_3x3mm_P0.5mm	U2
1	Conn_02x10_Odd_Even	Connector_PinHeader_2.54mm:PinHeader_2x10_P2.54mm_Horizontal	J2
1	ESP32-WROOM-32E	RF_Module:ESP32-WROOM-32D	U4
1	SD_Card_Receptacle	Connector_Card:SD_TE_2041021	J3
1	USB_B_Micro	HardwareDataLogger:USB_Micro-B_Molex-105017-0001_Extra_Mechanical_Pads	J1
1	~	HardwareDataLogger:ExtensionConnector	J6

Questions

How big is the ProcessingAndStorage PCB?

It measures 85 × 50 mm and has 2 copper layers, 1.6 mm thick.

What parts does the ProcessingAndStorage use?

62 parts, built around the ESP32-WROOM-32E, CH340X, BC846 and PJGBLC03C_R1_00001. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the ProcessingAndStorage KiCad files?

From the RobertGawron/HardwareDataLogger repository on GitHub, at the commit this page was made from: the board is Hardware/ProcessingAndStorage/ProcessingAndStorage.kicad_pcb and its schematic Hardware/DataAcquisitionUnit/DataAcquisitionUnit.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the ProcessingAndStorage design in my own project?

Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

Category and platform

Radio and wireless Home automation and IoT ESP32 STM32

Topics

firmware hardware shield stm32f103 logger iot-device iot data-analysis embedded embedded-rust embedded-systems esp32 pcb pcb-design rust rust-lang raspberry-pi

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/robertgawron-hardwaredatalogger-processingandstorage" title="ProcessingAndStorage in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/robertgawron-hardwaredatalogger-processingandstorage.jpg" alt="ProcessingAndStorage" width="1200" height="900">

A picture that opens the board, for a README

[![ProcessingAndStorage](https://pcbkit.io/embed/boards/robertgawron-hardwaredatalogger-processingandstorage.jpg?size=s)](https://pcbkit.io/boards/robertgawron-hardwaredatalogger-processingandstorage)

Source

Repository: RobertGawron/HardwareDataLogger
Board file: Hardware/ProcessingAndStorage/ProcessingAndStorage.kicad_pcb
Commit: 806ed61
Homepage: hackaday.io/project/181031-data-logger-shield
Licence: MIT

Similar boards

2 layers57.8 × 48.6 mm
Esp32-weather epd
Diabltica/esp32-weather-epd_pcb
A low-power E-Paper weather display powered by an ESP32 microcontroller. Utilizes the OpenWeatherMap API.
67 partsGPL-3.0
2 layers93.6 × 94.2 mm
Mp3Player
Tritonsspace/MP3PlayerPCB

65 parts
2 layers
ESP
MurilloHorvath/KiCad
Projetos utilizando o software KiCad
72 parts1MIT
6 layers60 × 55 mm
PoE Ethernet GPIB Adapter
Kofen/PoE_Ethernet_GPIB_Adapter
This folder contains the necessary hardware files for the PoE Ethernet GPIB Adapter project.
198 parts120GPL-3.0
2 layers36.4 × 18.9 mm
Ch340x
openwch/ch34x
CH340, CH343, CH342, CH344,CH348
14 parts42
2 layers100 × 100 mm
Zxevo1010 main
UzixLS/zxevo1010-board
10x10cm PCB variant of ZX-Evolution project for G738/G706 enclosure
252 parts26
4 layers100 × 100 mm
GammaSpectrometer
RobertGawron/GammaSpectrometer
Device for quantitative analyze energy spectra of gamma-ray sources. Allows to study what radioactive isotopes in what quantities are present in measured sample.
326 parts16MIT
4 layers102 × 100 mm
Zelvicka
RoboticsBrno/Robutek
Robůtek je robotická platforma založená na čipu ESP32-S3. Je velice rozšitiřelný, ale ze základu umí jezdit, kreslit fixou, jezdit po čáře, pohybovat se bludištěm. Programování je přes Jaculus.
214 parts12